Members of Alpha Omicron Pi can choose from these types of badges:
1. Plain Badge (10K or goldplated - A, O, II all polished)
2. Chased Badge (The A & II are plain polish, and O is chased)
2a. **New - 2 toned - white gold A & II, with yellow gold O (see below right)
3. Jeweled Badge (Crown pearls going around the O, chased A & II)
4. Jeweled Badge (Crown Pearls going around all letters)

The ruby is always at the apex of the 'A', and you can choose between yellow or white gold. There are no 'guards' for AOII badges.
There are honour badges with rubies on the A or ruby on A & pearl on O, but those can only be purchased by chapter)
See
http://www.aoiiemporium.com/store/home.html and select "jewlery". To see the 2-toned, click
here